| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thermal head that can suppress variation in heat radiation property and variation of resistance values by the reduction of a capacitance difference between respective individual electrodes, remove unevenness in printing density by making heat generation of heat generating elements be uniform, and obtain a good printing result. <P>SOLUTION: The thermal head 1 includes: an insulating head substrate 2; a plurality of driver ICs 12; the plurality of heat generating elements 6 arranged on the head substrate 2 in a main scanning direction; the plurality of individual electrodes 9 provided on the head substrate 2 at one ends of the respective heat generating elements 6 and configured to connect the respective heat generating elements 6 to the driver ICs 12; and a common electrode 10 provided on the head substrate 2 at the other ends of the respective heat generating elements 6 so as to be common to the heat generating elements 6. In the thermal head 1, capacitance adjustment portions 13 which adjust capacitance difference between the respective individual electrodes 9 so that the capacitance difference is reduced, are formed at the wiring pattern of the individual electrodes 9. <P>COPYRIGHT: (C)2012,JPO&INPIT |
